140441636 has 12 divisors (see below), whose sum is σ = 245865228. Its totient is φ = 70194432.

The previous prime is 140441629. The next prime is 140441659. The reversal of 140441636 is 636144041.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 131102500 = 3056^2 + 11450^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140441599 and 140441608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10040 + ... + 19536.

It is an arithmetic number, because the mean of its divisors is an integer number (20488769).

Almost surely, 2^140441636 is an apocalyptic number.

It is an amenable number.

140441636 is a deficient number, since it is larger than the sum of its proper divisors (105423592).

140441636 is a wasteful number, since it uses less digits than its factorization.

140441636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198 (or 13196 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 140441636 is about 11850.8073986543. The cubic root of 140441636 is about 519.7948352369.

Adding to 140441636 its reverse (636144041), we get a palindrome (776585677).

The spelling of 140441636 in words is "one hundred forty million, four hundred forty-one thousand, six hundred thirty-six".